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<head>
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    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

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    <title>组件</title>
</head>

<body>

    <section class="container">
        <h2>面包屑</h2>
        <nav aria-label="breadcrumb">
            <ol class="breadcrumb">
                <li class="breadcrumb-item"><a href="#">Home</a></li>
                <li class="breadcrumb-item"><a href="#">Library</a></li>
                <li class="breadcrumb-item active" aria-current="page">Data</li>
            </ol>
        </nav>
        <button type="button" class="btn btn-primary btn-lg">Large button</button>
        <div class="card-group">
            <div class="card">
                <img src="..." class="card-img-top" alt="...">
                <div class="card-body">
                    <h5 class="card-title">Card title</h5>
                    <p class="card-text">This is a wider card with supporting text below as a natural lead-in to
                        additional content. This content is a little bit longer.</p>
                    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
            </div>
            <div class="card">
                <img src="..." class="card-img-top" alt="...">
                <div class="card-body">
                    <h5 class="card-title">Card title</h5>
                    <p class="card-text">This card has supporting text below as a natural lead-in to additional content.
                    </p>
                    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
            </div>
            <div class="card">
                <img src="https://cn.bing.com/th?id=OIP.c4RBIyTHaeRH08T4bp_waAHaGO&pid=Api&rs=1" class="card-img-top"
                    alt="...">
                <div class="card-body">
                    <h5 class="card-title">Card title</h5>
                    <p class="card-text">This is a wider card with supporting text below as a natural lead-in to
                        additional content. This card has even longer content than the first to show that equal height
                        action.</p>
                    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
            </div>
        </div>
        <div class="card-deck">
            <div class="card">
                <img src="..." class="card-img-top" alt="...">
                <div class="card-body">
                    <h5 class="card-title">Card title</h5>
                    <p class="card-text">This is a longer card with supporting text below as a natural lead-in to
                        additional content. This content is a little bit longer.</p>
                    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
            </div>
            <div class="card">
                <img src="..." class="card-img-top" alt="...">
                <div class="card-body">
                    <h5 class="card-title">Card title</h5>
                    <p class="card-text">This card has supporting text below as a natural lead-in to additional content.
                    </p>
                    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
            </div>
            <div class="card">
                <img src="..." class="card-img-top" alt="...">
                <div class="card-body">
                    <h5 class="card-title">Card title</h5>
                    <p class="card-text">This is a wider card with supporting text below as a natural lead-in to
                        additional content. This card has even longer content than the first to show that equal height
                        action.</p>
                    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
            </div>
        </div>
        <div class="card" style="width: 18rem;">
            <img src="https://cn.bing.com/th?id=OIP.c4RBIyTHaeRH08T4bp_waAHaGO&pid=Api&rs=1" class="card-img-top"
                alt="...">
            <div class="card-body">
                <h5 class="card-title">Card title</h5>
                <p class="card-text">Some quick example text to build on the card title and make up the bulk of the
                    card's content.</p>
                <a href="#" class="btn btn-primary">Go somewhere</a>
            </div>
        </div>
        <div class="card">
            <div class="card-header">
                Featured
            </div>
            <div class="card-body">
                <h5 class="card-title">Special title treatment</h5>
                <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
                <a href="#" class="btn btn-primary">Go somewhere</a>
            </div>
        </div>
        <div class="shadow-none p-3 mb-5 bg-light rounded">No shadow</div>
        <div class="shadow-sm p-3 mb-5 bg-white rounded">Small shadow</div>
        <div class="shadow p-3 mb-5 bg-white rounded">Regular shadow</div>
        <div class="shadow-lg p-3 mb-5 bg-white rounded">Larger shadow</div>
        <div class="jumbotron">
            <h1 class="display-4">Hello, world!</h1>
            <p class="lead">This is a simple hero unit, a simple jumbotron-style component for calling extra attention
                to featured content or information.</p>
            <hr class="my-4">
            <p>It uses utility classes for typography and spacing to space content out within the larger container.</p>
            <a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a>
        </div>
    </section>

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